https://ift.tt/3laD29a https://ift.tt/eA8V8J September 10, 2021 at 10:21PM https://ift.tt/3imTG2i Africa on Friday joined the international Phase 3 clinical trials of China's Sinovac Biotech COVID-19 vaccine for those aged between 6 months and 17 years, with first of the 2,000 children...
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